Articles | Volume 19, issue 7
https://doi.org/10.5194/bg-19-1959-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-19-1959-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Peat macropore networks – new insights into episodic and hotspot methane emission
School of Forest Sciences, Faculty of Science and Forestry, University of Eastern Finland, P.O. Box 111, 80101 Joensuu, Finland
Marjo Palviainen
Department of Forest Sciences, University of Helsinki, P.O. Box 27, 00014 Helsinki, Finland
Tiia Grönholm
Finnish Meteorological Institute (FMI), Erik Palmenin aukio 1, 00560 Helsinki, Finland
Maarit Raivonen
Institute for Atmospheric and Earth System Research (INAR)/Physics, Faculty of Science, University of Helsinki, P.O. Box 68, 00014 Helsinki, Finland
Lukas Kohl
Department of Agricultural Sciences, University of Helsinki, P.O. Box 56, 00014 Helsinki, Finland
Institute for Atmospheric and Earth System Research (INAR)/Forest Sciences, Faculty of Agriculture and Forestry, University of Helsinki, P.O. Box 56, 00014 Helsinki, Finland
Vincent Gauci
Birmingham Institute of Forest Research (BIFoR), University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
School of Geography, Earth and Environmental Sciences, University of Birmingham, Edgbaston, Birmingham, B15 2TT, UK
Iñaki Urzainki
School of Forest Sciences, Faculty of Science and Forestry, University of Eastern Finland, P.O. Box 111, 80101 Joensuu, Finland
Natural Resources Institute Finland (Luke), Latokartanonkaari 9, 00790 Helsinki, Finland
Annamari Laurén
School of Forest Sciences, Faculty of Science and Forestry, University of Eastern Finland, P.O. Box 111, 80101 Joensuu, Finland
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Cited
9 citations as recorded by crossref.
- Pore network modeling as a new tool for determining gas diffusivity in peat P. Kiuru et al. 10.5194/bg-19-5041-2022
- Extending the SUSI peatland simulator to include dissolved organic carbon formation, transport and biodegradation - Proper water management reduces lateral carbon fluxes and improves carbon balance M. Palviainen et al. 10.1016/j.scitotenv.2024.175173
- Soil GHG dynamics after water level rise – Impacts of selection harvesting in peatland forests M. Peltoniemi et al. 10.1016/j.scitotenv.2023.165421
- Roots of Cynodon dactylon increase gas permeability and gas diffusion coefficient of highly compacted soils S. Feng et al. 10.1007/s11104-023-06173-6
- A process-based model for quantifying the effects of canal blocking on water table and CO2emissions in tropical peatlands I. Urzainki et al. 10.5194/bg-20-2099-2023
- Effects of Pore-Size Distribution on the Gas Diffusion Coefficient and Gas Permeability of Compacted Manufactured Sand Tailing–Bentonite Mixtures S. Feng et al. 10.1061/JGGEFK.GTENG-11303
- Plant-mediated CH4 exchange in wetlands: A review of mechanisms and measurement methods with implications for modelling M. Ge et al. 10.1016/j.scitotenv.2023.169662
- Peat macropore networks – new insights into episodic and hotspot methane emission P. Kiuru et al. 10.5194/bg-19-1959-2022
- Pore network modeling as a new tool for determining gas diffusivity in peat P. Kiuru et al. 10.5194/bg-19-5041-2022
7 citations as recorded by crossref.
- Pore network modeling as a new tool for determining gas diffusivity in peat P. Kiuru et al. 10.5194/bg-19-5041-2022
- Extending the SUSI peatland simulator to include dissolved organic carbon formation, transport and biodegradation - Proper water management reduces lateral carbon fluxes and improves carbon balance M. Palviainen et al. 10.1016/j.scitotenv.2024.175173
- Soil GHG dynamics after water level rise – Impacts of selection harvesting in peatland forests M. Peltoniemi et al. 10.1016/j.scitotenv.2023.165421
- Roots of Cynodon dactylon increase gas permeability and gas diffusion coefficient of highly compacted soils S. Feng et al. 10.1007/s11104-023-06173-6
- A process-based model for quantifying the effects of canal blocking on water table and CO2emissions in tropical peatlands I. Urzainki et al. 10.5194/bg-20-2099-2023
- Effects of Pore-Size Distribution on the Gas Diffusion Coefficient and Gas Permeability of Compacted Manufactured Sand Tailing–Bentonite Mixtures S. Feng et al. 10.1061/JGGEFK.GTENG-11303
- Plant-mediated CH4 exchange in wetlands: A review of mechanisms and measurement methods with implications for modelling M. Ge et al. 10.1016/j.scitotenv.2023.169662
Latest update: 11 Dec 2024
Short summary
Peatlands are large sources of methane (CH4), and peat structure controls CH4 production and emissions. We used X-ray microtomography imaging, complex network theory methods, and pore network modeling to describe the properties of peat macropore networks and the role of macropores in CH4-related processes. We show that conditions for gas transport and CH4 production vary with depth and are affected by hysteresis, which may explain the hotspots and episodic spikes in peatland CH4 emissions.
Peatlands are large sources of methane (CH4), and peat structure controls CH4 production and...
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